1253625261 has 12 divisors (see below), whose sum is σ = 1944398592. Its totient is φ = 716357208.

The previous prime is 1253625251. The next prime is 1253625323. The reversal of 1253625261 is 1625263521.

It is not a de Polignac number, because 1253625261 - 2⁵ = 1253625229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253625211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4263885 + ... + 4264178.

It is an arithmetic number, because the mean of its divisors is an integer number (162033216).

Almost surely, 2^1253625261 is an apocalyptic number.

It is an amenable number.

1253625261 is a deficient number, since it is larger than the sum of its proper divisors (690773331).

1253625261 is an equidigital number, since it uses as much as digits as its factorization.

1253625261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528080 (or 8528073 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 1253625261 is about 35406.5708732150. The cubic root of 1253625261 is about 1078.2577249647.

Adding to 1253625261 its reverse (1625263521), we get a palindrome (2878888782).

The spelling of 1253625261 in words is "one billion, two hundred fifty-three million, six hundred twenty-five thousand, two hundred sixty-one".